报道了一项高密度激光等离子体keV波段X射线吸收谱工作。实验上采用称为“点投影(Point Projection)”的靶场光学方案，成功地获得了高空间分辨(<24 μm)的类氦铝1s2-1s2p及类氖锗2p-3d共振吸收谱信号，为Ｘ激光及激光核聚变研究提供了一种新的参量诊断方案。

We have developed and successfully demonstrated a “point projection absorption spectroscopy (PPAS)” technique to record keV absorption spectra in the coronal region of laser produced germanium plasmas and aluminium plasmas which provide spatial information in the coma at a ～24 μm level resolution and can freeze the motion of the expanding plasmas at a≈250 ps level.